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Anatomy of the Soft Palate and Pharynx Study Guide

Learn about the anatomy, origins, insertions, and functions of the suprahyoid and infrahyoid muscles, as well as the sternocleidomastoid and trapezius muscles. Understand their significance in jaw and laryngeal movements, and their relation to clinical assessments.

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Anatomy of Facial, Pharyngeal, and Neck Muscles

Muscles of Facial Expression

This lesson covers the various groupings, locations, origins, insertions, and actions of muscles of facial expression and their nerve innervations.

  • Muscles of facial expression
  • Seventh cranial nerve
  • Anterior auricular muscles
  • Superior auricular muscles
  • Posterior auricular muscles
  • Occipitofrontalis
  • Platysma
  • Orbicularis oculi
  • Levator palpebrae superioris
  • Corrugator
  • Procerus

Soft Palate and Pharynx Anatomy

This lesson describes the origins, insertions, actions, and nerve supplies of muscles of the soft palate and pharynx.

  • Soft palate
  • Pharynx
  • Nasal pharynx
  • Oral pharynx
  • Laryngeal pharynx
  • Palatoglossus muscle
  • Palatopharyngeal muscle
  • Levator veli palatini
  • Cranial nerves

Anatomy of Pharyngeal Muscles and Actions

  • Superior pharyngeal constrictor
  • Middle pharyngeal constrictor
  • Inferior pharyngeal constrictor
  • Median raphe
  • Palatopharyngeus muscle
  • Stylopharyngeus muscle
  • Salpingopharyngeal muscle
  • Levator veli palatini
  • Swallowing mechanism
  • Speech production
  • Cranial nerve supply

Anatomy of Nose, Mouth, and Mastication Muscles

This text describes the origin, insertion, and function of various nose, mouth, and mastication muscles, including those that influence expression, speech, and mandibular movement.

  • Nasalis
  • Orbicularis oris
  • Levator labii superioris
  • Zygomaticus minor
  • Zygomaticus major
  • Levator anguli oris
  • Depressor labii inferioris
  • Mentalis
  • Buccinator
  • Risorius
  • Mastication
  • Muscles of mastication
  • Masseter muscle
  • Temporal muscle
  • Medial pterygoid muscle
  • Lateral pterygoid muscle
  • Hyoid muscles
  • Sternocleidomastoid muscle
  • Trapezius muscle

Anatomy of Hyoid and Neck Muscles

This content details the suprahyoid and infrahyoid muscle groups, their origins, insertions, nerve supplies, blood supplies, and their roles in movements of the jaw and larynx.

  • Hyoid muscles
  • Suprahyoid group
  • Infrahyoid group
  • Digastric muscle
  • Mylohyoid muscle
  • Geniohyoid muscle
  • Stylohyoid muscle
  • Omohyoid muscle
  • Sternohyoid muscle
  • Sternothyroid muscle
  • Thyrohyoid muscle
  • Mandibular movements
  • Laryngeal movements
  • Sternocleidomastoid muscle
  • Trapezius muscle

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